Sunday, September 08, 2013 Website for Cert Practice Tests

Practice tests/exam simulators for various leading IT certs has been offered here with details on number of questions available in full and demo versions, pricing for practice tests, and latest revisions.

Thursday, August 15, 2013

A+ Cert - Patch Management Policy

This list covers the major categories of things that can be patched or updated in a typical desktop configuration and the order in which you should apply them whenever possible. Patch your systems in this order and your patch management policy will be stronger than ever.


As with servers, start here. Managing BIOS updates across multiple systems is all the easier when they're of the same make and manufacturer, but it requires "hard" downtime: The computer has to be powered down and rebooted to apply the new BIOS, and the administrator usually has to baby-sit each system individually that will be upgraded. Fortunately, many PC manufacturers now allow centralized updates to BIOSes through a management application -- Altiris, for instance, has a management solution for Dell desktops and notebooks that allows remote BIOS updates.

    Device BIOSes:

These include things like BIOS updates for disk controllers, video cards or other devices. Device BIOS updates go into a separate category from regular BIOS updates for two reasons: One, they are easy to overlook and not often considered for desktops; two, you usually cannot update them en masse. For example: If you're administering a group of graphical workstations that need updates to their video card's BIOSes -- and the only way to do that is via a 16-bit DOS-based updater -- you'll probably have to do that by hand for each computer. However, if you could perform the update through a 32-bit Windows application, you could probably push out your Windows patches as you would any other update.

    Device drivers:

As with servers, one of the more common hardware device-driver updates published for a desktop computer is for the network controller. Make sure you test the update ahead of time. If you automate patching on a whole slew of machines with such a driver and the end result is that they're all knocked off the network, your only choice might be to either re-image them from scratch or fix each one manually.

    The OS:
    Patching Windows OSes is the part almost everyone is directly familiar with and it needs relatively little elaboration here. One thing I'll add is something I also wrote about in the server version of this article: If there are device driver updates, they should be examined separately from other updates in case an OEM-provided version of the driver is more urgently needed.


This normally includes elements such as ODBC drivers but should also include things like the Microsoft .NET Framework. Note that with the .NET Framework, the 1.1 and 2.0 iterations (and the upcoming 3.0 edition as well) exist side-by-side and don't eclipse each other.

    Application patches:
As with the OS and its attendant patches, you can roll out application patches through the usual automated mechanisms, and it should be done only after everything else has already been applied.

Practice Tests:

Sunday, August 04, 2013

A+ Certification Books

Written by the leading authority on CompTIA A+ certification and training, the new edition of this trusted resource offers complete, up-to-date coverage of CompTIA A+ exams 220-801 and 220-802. You’ll find learning objectives at the beginning of each chapter, exam tips, practice exam questions, and in-depth explanations. Prepare for the exams with confidence! McGraw-Hill is a Gold-Level CompTIA Authorized Partner offering Authorized CompTIA Approved Quality Content to give you the competitive edge on exam day. This comprehensive guide also serves as an essential on-the-job reference after certification.

Saturday, July 27, 2013 - Articles on OSI Model, Motherboard, and others. has the following articles which may be useful in understanding or preparing for A+ cert.

Motherboard components:
1. Mouse & keyboard
2. USB
3. Parallel port
4. CPU Chip
5. RAM slots
6. Floppy controller
7. IDE controller
8. PCI slot
9. ISA slot
10. CMOS Battery
11. AGP slot
12. CPU slot
13. Power supply plug in 
Network implementation consists of the following steps:
1. Physical network design
i. Local Area Network design:
LAN design consists of selecting appropriate devices such as Hubs, Bridges, Switches, and Routers. Criteria for selecting LAN devices include the following:
  1. The number of ports required at different levels
  2. The speed (10Mbps/100Mbps/1Gbps or others)
  3. Media considerations, such as Ethernet, Token Ring etc.
  4. Support for different network protocols such as TCP, VOIP etc.
  5. Ease of configuration, and maintainability
  6. Management (SNMP etc.)
  7. Availability
  8. Documentation
Printers are commonly used output devices that produce a hard copy of document stored in electronic form, i.e they put information from computer on to paper.
 There are various kinds of printers available today like Impact printers, Bubble-jet printers, Laser printers, Thermal printers etc.
An Internet consists of a set of connected networks. The chief advantage of an Internet is that it provides universal interconnection while allowing individual groups to use whatever network hardware is best suited to their needs. The technology TCP/IP provides the basis for the global Internet, which helps in connecting individuals, universities, corporation and government department in many countries around the globe. The global Internet is expanding rapidly.
 The OSI (Open Systems Interconnection) Model has the following layers:
  1. The Application layer
  2. The Presentation layer
  3. The Session layer
  4. The Transport layer
  5. The Network layer
  6. The Data link layer
  7. The Physical layer

Note that the layers are divided for convenience and understanding, and in actual practice, there might be some overlap in functionalities. Visit for free articles.

Thursday, July 25, 2013

A+ Certification 220-801 Practice Tests released A+ 220-801 Essentials practice tests with 300+ questions and answers. As you might be aware, CompTIA has release new exams several months ago and the older 220-701 will become obsolete very shortly. If any one is preparing for the exam with older objectives, you need to take the exam before it expires.

You may download the new A+ Essentials practice tests and try before purchasing the full version.